/**
* gfx_ctx_init:
* @data : Input data.
* @ctx : Graphics context driver to initialize.
* @ident : Identifier of graphics context driver to find.
* @api : API of higher-level graphics API.
* @major : Major version number of higher-level graphics API.
* @minor : Minor version number of higher-level graphics API.
* @hw_render_ctx : Request a graphics context driver capable of
* hardware rendering?
*
* Initialize graphics context driver.
*
* Returns: graphics context driver if successfully initialized, otherwise NULL.
**/
static const gfx_ctx_driver_t *gfx_ctx_init(void *data,
const gfx_ctx_driver_t *ctx,
const char *ident,
enum gfx_ctx_api api, unsigned major,
unsigned minor, bool hw_render_ctx)
{
settings_t *settings = config_get_ptr();
if (ctx->bind_api(data, api, major, minor))
{
void *ctx_data = ctx->init(data);
if (!ctx_data)
return NULL;
if (ctx->bind_hw_render)
ctx->bind_hw_render(ctx_data,
settings->video.shared_context && hw_render_ctx);
gfx_ctx_ctl(GFX_CTL_SET_VIDEO_CONTEXT_DATA, ctx_data);
return ctx;
}
#ifndef _WIN32
RARCH_WARN("Failed to bind API (#%u, version %u.%u) on context driver \"%s\".\n",
(unsigned)api, major, minor, ctx->ident);
#endif
return NULL;
}
static const shader_backend_t *video_shader_set_backend(enum rarch_shader_type type)
{
switch (type)
{
case RARCH_SHADER_CG:
{
#ifdef HAVE_CG
gfx_ctx_flags_t flags;
gfx_ctx_ctl(GFX_CTL_GET_FLAGS, &flags);
if (BIT32_GET(flags.flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT))
{
RARCH_ERR("[Shader driver]: Cg cannot be used with core GL context. Trying to fall back to GLSL...\n");
return video_shader_set_backend(RARCH_SHADER_GLSL);
}
RARCH_LOG("[Shader driver]: Using Cg shader backend.\n");
return &gl_cg_backend;
#else
break;
#endif
}
case RARCH_SHADER_GLSL:
#ifdef HAVE_GLSL
RARCH_LOG("[Shader driver]: Using GLSL shader backend.\n");
return &gl_glsl_backend;
#else
break;
#endif
case RARCH_SHADER_NONE:
default:
break;
}
return NULL;
}
static int menu_input_pointer_post_iterate(
menu_file_list_cbs_t *cbs,
menu_entry_t *entry, unsigned action)
{
unsigned header_height;
size_t selection;
static bool pointer_oldpressed[2];
static bool pointer_oldback = false;
static int16_t start_x = 0;
static int16_t start_y = 0;
static int16_t pointer_old_x = 0;
static int16_t pointer_old_y = 0;
int ret = 0;
menu_input_t *menu_input = menu_input_get_ptr();
settings_t *settings = config_get_ptr();
bool check_overlay = false;
if (settings)
check_overlay = !settings->menu.pointer.enable;
if (!menu_input)
return -1;
if (!menu_navigation_ctl(MENU_NAVIGATION_CTL_GET_SELECTION, &selection))
return -1;
menu_display_ctl(MENU_DISPLAY_CTL_HEADER_HEIGHT, &header_height);
#ifdef HAVE_OVERLAY
check_overlay = check_overlay ||
(settings->input.overlay_enable && input_overlay_is_alive());
#endif
if (check_overlay)
return 0;
if (menu_input->pointer.pressed[0])
{
gfx_ctx_metrics_t metrics;
float dpi;
static float accel0 = 0.0f;
static float accel1 = 0.0f;
int16_t pointer_x = menu_input_pointer_state(MENU_POINTER_X_AXIS);
int16_t pointer_y = menu_input_pointer_state(MENU_POINTER_Y_AXIS);
metrics.type = DISPLAY_METRIC_DPI;
metrics.value = &dpi;
gfx_ctx_ctl(GFX_CTL_GET_METRICS, &metrics);
if (!pointer_oldpressed[0])
{
menu_input->pointer.accel = 0;
accel0 = 0;
accel1 = 0;
start_x = pointer_x;
start_y = pointer_y;
pointer_old_x = pointer_x;
pointer_old_y = pointer_y;
pointer_oldpressed[0] = true;
}
else if (abs(pointer_x - start_x) > (dpi / 10)
|| abs(pointer_y - start_y) > (dpi / 10))
{
float s, delta_time;
menu_input_ctl(MENU_INPUT_CTL_SET_POINTER_DRAGGED, NULL);
menu_input->pointer.dx = pointer_x - pointer_old_x;
menu_input->pointer.dy = pointer_y - pointer_old_y;
pointer_old_x = pointer_x;
pointer_old_y = pointer_y;
menu_animation_ctl(MENU_ANIMATION_CTL_DELTA_TIME, &delta_time);
s = (menu_input->pointer.dy * 550000000.0 ) /
( dpi * delta_time );
menu_input->pointer.accel = (accel0 + accel1 + s) / 3;
accel0 = accel1;
accel1 = menu_input->pointer.accel;
}
}
else
{
if (pointer_oldpressed[0])
{
if (!menu_input_ctl(MENU_INPUT_CTL_IS_POINTER_DRAGGED, NULL))
{
menu_ctx_pointer_t point;
point.x = start_x;
point.y = start_y;
point.ptr = menu_input->pointer.ptr;
point.cbs = cbs;
point.entry = entry;
point.action = action;
menu_driver_ctl(RARCH_MENU_CTL_POINTER_TAP, &point);
ret = point.retcode;
}
pointer_oldpressed[0] = false;
start_x = 0;
start_y = 0;
pointer_old_x = 0;
pointer_old_y = 0;
menu_input->pointer.dx = 0;
menu_input->pointer.dy = 0;
menu_input_ctl(MENU_INPUT_CTL_UNSET_POINTER_DRAGGED, NULL);
}
}
if (menu_input->pointer.back)
{
if (!pointer_oldback)
{
pointer_oldback = true;
menu_entries_pop_stack(&selection, 0, 1);
menu_navigation_ctl(MENU_NAVIGATION_CTL_SET_SELECTION, &selection);
}
}
pointer_oldback = menu_input->pointer.back;
return ret;
}
